|Publication number||US4988836 A|
|Application number||US 07/381,071|
|Publication date||Jan 29, 1991|
|Filing date||Jul 17, 1989|
|Priority date||Jul 17, 1989|
|Also published as||CA2021218A1, EP0409507A1|
|Publication number||07381071, 381071, US 4988836 A, US 4988836A, US-A-4988836, US4988836 A, US4988836A|
|Inventors||Wayne J. Murray|
|Original Assignee||Summagraphics Corporation|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (1), Referenced by (5), Classifications (5), Legal Events (9)|
|External Links: USPTO, USPTO Assignment, Espacenet|
The present invention relates to digitizers. More particularly, the present invention relates to a digitizer tablet having means for conveniently carrying and storing digitizer components such as the cursor, stylus, clips and cables.
A digitizer includes a tablet and a cursor or stylus and provides digitized signals to a computer which represent the position of the cursor or stylus on a digitizing surface of the tablet. Typically, digitizers are used with a computer to input to the computer digitized signals representing graphics, drawings, etc., or menu selection, etc. The tablet includes a grid or electrode structure adjacent the digitizing surface which interacts with the cursor or stylus as it is moved on or in close proximity to the digitizing surface. The tablet typically encloses circuitry that generates the digitized signals representing the position of the cursor or stylus relative to the digitizing surface.
Typically, a heavier interface cable is used to connect the digitizer tablet to the computer and another lighter cable is used to connect the cursor or the stylus to the tablet. Frequently, spring clips are used to secure sheet material (e.g., graphics or a menu overlay) to the digitizing surface of the tablet.
One problem frequently encountered with digitizers when they are not in use is the need for safe and orderly storage of the various small components used with the digitizer tablet. The cursor, stylus, spring clips, and cables tend to be stored and carried separately from the tablet, for example, in envelopes or storage boxes. However, once thus separated from the tablet, those components are apt to become lost. Storage envelopes are not satisfactory for storing those components because they are not rigid, do not stack well and are inconvenient to store, and storage boxes are not satisfactory because they are too bulky, and take up too much space. On the other hand, when the components are left connected to an unused tablet, they tend to get in the way and present a disorderly appearance.
Thus, there is a need to provide safe and orderly storage for digitizer components of the type described above with the tablet without increasing substantially the size, cost and complexity of the tablet and without affecting substantially the streamlined appearance of the tablet or taking up any space on or adjacent the digitizing surface of the tablet.
An object of the present invention is to provide storage with a digitizer tablet for digitizer components used with the tablet such as the cables, stylus, cursor and clips.
Another object of the present invention is to provide for such storage with the tablet without substantially increasing the cost of the tablet.
Another object of the present invention is to provide for such storage with the tablet without substantially increasing the complexity of the manufacture of the tablet.
Another object of the present invention to provide for such storage with the tablet without substantially increasing the size of the tablet.
Another object of the present invention is to provide for such storage without substantially affecting the streamlined appearance of the tablet or occupying any space on or adjacent the digitizing surface of the tablet.
Another object of the present invention is to provide for such storage with the tablet without interfering with stable placement of the digitizer tablet on a flat surface.
Another object of the present invention is to provide compact digitizer apparatus that can be conveniently stored as a unit.
The present invention achieves these and other objects by providing a space associated with a digitizer tablet for storing digitizer components such as a stylus, cursor, cables and clips. The space may be defined by a recess, pocket, compartment, etc. in the digitizer tablet suitably structured to retain digitizer tablets of the type described.
The digitizer tablet includes a first side including a digitizing surface and a second side opposed to the first side. Preferably, the first and second sides of the digitizer tablet are parallel to each other. In accordance with a specific embodiment of the invention, the space is provided associated with the second side with access thereto provided in the second side of the tablet or in the periphery of the tablet. In a specific embodiment, the space is defined by a recess in the second side of the tablet and structure for retaining digitizer components of the type described therein.
In a preferred embodiment, the bottom of the tablet is provided with a recess therein and a cover for closing the recess except for an opening thereto, thereby providing an enclosure with an opening for access thereto for inserting and removing the digitizer components from the enclosure.
According to a preferred embodiment, the tablet includes a molded base having a bottom, and the space is defined by an enclosure in the nature of a compartment or pocket in the bottom with an opening thereto also in the bottom. In one embodiment, the bottom of the base is molded with a recessed bottom surface portion, an unrecessed bottom surface portion and one or more sidewalls extending between the recessed and unrecessed bottom surface portions. The enclosure is defined by the recessed bottom surface portion, the one or more sidewalls and a cover opposite the recessed bottom surface portion connected to the digitizer tablet base bottom so its outer surface is flush with the unrecessed bottom surface portion, thereby presenting a digitizer tablet base bottom which stably supports the tablet on a flat surface. The cover is sized to provide an opening to the enclosure form the bottom of the base.
Preferably, the cover is a plate and a lip is formed at the edge of the one or more sidewalls which receives the plate, and the plate is solvent bonded to the lip. Alternatively, the plate may be a unitary part of the base, e.g., the plate may be molded integrally with the rest of the base either in a single or in multiple molding operations, with or without the lip.
The dimensions of the enclosure and the opening that provides access to the enclosure are selected so that the stylus, cursor, cables and clips may be inserted into the enclosure and securely held therein. Preferably, the sidewall or sidewall portion of the recess adjacent the opening is sloped to form a ramp, and substantially the entire ramp is exposed by the opening. Preferably, the recess extends into a portion of the sloped sidewall to form rectangular well therein suitable for accommodating a cable connector.
The base may be provided with channels in the bottom thereof for running the cables from their point of entry into the tablet. The channels are structured to receive a respective cable therein so that it does not project from the bottom surface of the base. This provides a flat, rigid unit with a flush bottom that includes all the components of the digitizer and can be conveniently stacked for storage, or carried in a plastic or leather carrying case or envelope.
The structure provided in accordance with the present invention is inexpensive to manufacture and provides convenient, secure storage for digitizer components that are otherwise easily misplaced and awkward to carry. In addition the invention provides a digitizer that is more compact than digitizers in which the tablet is stored separately from the other components.
The above and other objects, aspects, features and advantages of the invention will be more readily perceived from the description of the preferred embodiments thereof taken in conjunction with the accompanying drawings and appended claims.
The invention is illustrated by way of example and not limitation in the figures of the accompanying drawings in which like references denote the same or corresponding parts, and in which:
FIG. 1 is a bottom plan view of a digitizer tablet in accordance with the present invention;
FIG. 2 is a cross-sectional view of the tablet shown in FIG. 1 taken along line 2--2 thereof; and
FIG. 3 is a cross-sectional view of the tablet shown in FIG. 1 taken along line 3--3 thereof.
Referring to the drawings, digitizer tablet 10 has a digitizing surface (FIGS. 2 and 3) and a storage enclosure or pocket 12 in the bottom 14 of base 16 in which are stored stylus 18, stylus cable 20, computer interface cable 22, and clips 24. Digitizer tablet 10 includes a grid or electrode structure, circuitry, shielding and other components which are not shown. Such components are generally known in the art, and an understanding of such components is not necessary for an understanding of the invention. Therefore, such components have not been shown or described. Interface cable 22 is permanently connected to tablet 10 through grommet 26 in base 16. Stylus cable 20 is removably or permanently connected to tablet 10. Pocket 12 may also house a cursor, not shown, in addition to or in lieu of stylus 18. The cursor may be removably or permanently connected to tablet 10. Perferably, stylus cable 20 and the cursor cable have a modular plug 27 and tablet 10 includes a mating receptacle 27a which interchangeably receives the modular plug 27 of the stylus or cursor.
Bottom 14 includes a recessed surface portion 30, an unrecessed surface portion 32 and sidewalls 34-37 connecting the recessed and unrecessed bottom surface potions 30, 32 to define a recess 38. A plate 39 is disposed opposite recessed surface portion 30, parallel thereto and spaced therefrom to form pocket 12. Plate 39 is sized and disposed to define an opening 41 to pocket 12 adjacent sidewall 37. Base 16 is molded with recessed bottom surface portion 30, unrecessed bottom surface 32 and sidewalls 34-37 integral with the remainder of the base.
A lip 43 formed in unrecessed bottom surface portion 34 at the edge of sidewalls 34-36 receives plate 39 which is bonded to lip 43 by any suitable means, e.g., by chemical or adhesive bonding, e.g., solvent bonding. Plate 39 lies flush with unrecessed bottom surface portion 32, as shown in FIG. 2.
Sidewall 37 is sloped to form a ramp that is oblique to recessed bottom surface portion 30 and is entirely exposed by opening 41. This facilitates insertion and removal of digitizer components into and from pocket 12. Sidewall 37 includes at one end thereof portions 37a and 37b which extend perpendicularly from unrecessed bottom surface portion 30 to form a well 42 into which recessed bottom surface portion 30 extends. Well 44 is provided so that connector 45 of computer interface cable 22 may conveniently be held therein flush with unrecessed bottom surface portion 32.
Cable 22 is held in pocket 12 wedged between plate 39, recessed bottom surface portion 30, sidewall 35 and well 44. Cable connector 45 is urged into and is engaged by well 44 due to the spring action of the cable.
Stylus 18 and stylus cable 20 are held in pocket 12 by wedging them between plate 39 and recesssed bottom surface portion 30. Clips 24 are inserted in pocket 12 so as to be held therein by cable 22, cable 20 or both.
Channels 50, 51 are formed in unrecessed bottom surface portion 32 for running cables 20 and 22 to grommets 26. Connection of cables 20 and 22 to connector receptable 27a and grommet 26 respectively and channels 50, 51 assist in holding cables 20, 22 in pocket 12.
Certain changes and modifications of the embodiments of the invention herein disclosed will be readily apparent to those of skill in the art. It is the applicant's intention to cover by the claims all such uses and all those changes and modifications which could be made to the embodiments of the invention herein chosen for the purposes of disclosure which do not depart from the spirit and scope of the invention.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US4653086 *||Mar 15, 1985||Mar 24, 1987||International Standard Electric Corporation||Communication terminal for processing voice and graphical information|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US5067573 *||Dec 26, 1990||Nov 26, 1991||Sony Corporation||Hand-writing input apparatus|
|US5422442 *||Oct 25, 1993||Jun 6, 1995||Sharp Kabushiki Kaisha||Mechanism for containing input pen|
|US6396005||Mar 1, 2001||May 28, 2002||Rodgers Technology Center, Inc.||Method and apparatus for diminishing grid complexity in a tablet|
|USD749564 *||Jul 29, 2014||Feb 16, 2016||Samsung Electronics Co., Ltd.||Portable electronic device|
|USD749565 *||Jul 29, 2014||Feb 16, 2016||Samsung Electronics Co., Ltd.||Portable electronic device|
|International Classification||G06F3/033, G06F3/041|
|Oct 16, 1989||AS||Assignment|
Owner name: SUMMAGRAPHICS CORPORATION, A CORP. OF DE, CONNECTI
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:MURRAY, WAYNE J.;REEL/FRAME:005160/0265
Effective date: 19890914
|Jun 1, 1992||AS||Assignment|
Owner name: BANK OF NEW YORK, NEW YORK
Free format text: SECURITY INTEREST;ASSIGNOR:SUMMAGRAPHICS CORPORAITON, A CORP. OF DE;REEL/FRAME:006137/0382
Effective date: 19920522
|Jul 28, 1994||FPAY||Fee payment|
Year of fee payment: 4
|Apr 5, 1996||AS||Assignment|
Owner name: SUMMAGRAPHICS CORPORATION, TEXAS
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BANK OF NEW YORK, THE;REEL/FRAME:007881/0787
Effective date: 19960329
|Oct 29, 1996||AS||Assignment|
Owner name: CALCOMP TECHNOLOGY, INC., CALIFORNIA
Free format text: CHANGE OF NAME;ASSIGNOR:SUMMAGRAPHICS CORPORATION;REEL/FRAME:008200/0049
Effective date: 19960723
|May 26, 1998||FPAY||Fee payment|
Year of fee payment: 8
|Aug 13, 2002||REMI||Maintenance fee reminder mailed|
|Jan 29, 2003||LAPS||Lapse for failure to pay maintenance fees|
|Mar 25, 2003||FP||Expired due to failure to pay maintenance fee|
Effective date: 20030129